html,body{
    margin: 0;
    padding: 0;
}

.root{
    height: calc(100vh - 80px);
    position: relative;
    float: left;
    margin-left: 0;
    margin-top: 0;
    box-sizing: border-box;
    border: 1px slategray solid;
}

.title{
    width: 100%;
    height: 20px;
    /*padding: 2px;*/
    background-color: aquamarine;
}